Sharp EL9900C - Graphing Calc With 2 Sided Keypad Lrg 22 CHAR/8 Line Display... User manual

Sharp EL-9900
Graphing Calculator
Basic Keyboard Activities
General Mathematics
Algebra
Programming
Advanced Keyboard Activities
Algebra
Calculus
Statistics
Trigonometry
Programming

Sharp EL-9900
Graphing Calculator
Basic Keypad
EL-9900
SUB SPLIT TBLSET DRAW FORMAT CALC
OPTION LIST CLIP
OFF A-LOCK
STAT
PLOT
SLIDE
SHOW
2ndF
ALPHA
Y=
GRAPH
TABLE
WINDOW
ZOOM
TRACE
ON
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456
x
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–
–
+
3
2
1
0(–)
ENTER
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+
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.
MATH
STAT
PRGM
Simp
STO
DEL BS
int
CL
x2
x
x–1
,
ab
A. xxx
abc
abcbc
ab
INS
RCL VARS
SET UP QUIT
A
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GH I J K
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QRST
CATALOG
SPACE ENTRY ANS
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1
Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Press to access the calculation screen.
1. Add 9 to 27 twice.
STEP 1: Enter 27 by pressing 2 7 .
STEP 2: Add by pressing the + key.
STEP 3: Enter 9 by pressing 9 .
STEP 4: Find the first sum by pressing the ENTER key.
STEP 5: Add 9 again by pressing + 9 ENTER .
2. Multiply to . Then, convert to a decimal.
STEP 1: Enter by pressing 3 a/b 4 .
STEP 2: Multiply by pressing the × key.
STEP 3: Enter by pressing 5 a/b 2 .
STEP 4: Find the product by pressing ENTER .
STEP 5: Convert to an improper fraction by pressing ➞b/c ENTER .
STEP 6: Convert to a mixed number by pressing ➞ab/c ENTER .
BASIC ARITHMETIC
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3
45
2
3
4
5
2
▼

2
Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Press to access the calculation screen.
A trapezoid is a four-sided figure where two of the sides are parallel
and the other two sides are not parallel.
The area of a trapezoid is defined to be Area = ( )•(b1+ b2) where h
is the height or distance between the parallel sides b1and b2.
1. Calculate ( ) ×(3 + 4).
STEP 1: Enter ( ) by pressing (5 a/b 2 ).
STEP 2: Multiply by pressing the ×key.
STEP 3: Enter (3 + 4) by pressing (3 + 4 ).
STEP 4: Calculate by pressing the ENTER key.
The answer is 17.5
2. Edit the previous calculation to find ( )•(7 + 4).
STEP 1: Edit the previous calculation by pressing 2ndF ENTRY
to move the blinking cursor to highlight the 3.
STEP 2: Delete the 3 by pressing DEL to backspace delete.
STEP 3: Insert the 7 by pressing 7 .
STEP 4: Calculate by pressing the ENTER key.
The answer is 27.5.
PARENTHESES AND EDITING
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h
2
5
2
5
2
5
2
▼
▼
▼ ▼
h
b1
b2
▼

3
Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Press to access the calculation screen.
Mixtures contain two or more components. Percents are often used to
express the amount of a component in a mixture.
1. Find 30% of 400.
STEP 1: Enter 400 by pressing 4 0 0 .
STEP 2: Multiply by pressing the ×key.
STEP 3: Enter 30% by pressing 3 0 2ndF % ENTER .
The answer is 120.
2. Find what percent of 500 is 150.
STEP 1: Enter 150 by pressing 1 5 0 .
STEP 2: Divide by pressing the ÷ key.
STEP 3: Enter 500 by pressing 5 0 0 .
STEP 4: Calculate by percentage by pressing 2ndF % ENTER .
The answer is 30%.
PERCENTS
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4
Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
3. Add 20% to 300.
STEP 1: Enter 300 by pressing 3 0 0 .
STEP 2: Add by pressing the + key.
STEP 3: Enter 20% by pressing 2 0 2ndF % ×
3 0 0 ENTER .
The answer is 360.
4. Subtract 40% from 200.
STEP 1: Enter 200 by pressing 2 0 0 .
STEP 2: Subtract by pressing the – key.
STEP 3: Enter 40% by pressing 4 0 2ndF % ×
2 0 0 ENTER .
The answer is 120.
PERCENTS (continued)

5
Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Press to access the calculation screen.
1. Calculate 2 • 3 and store the value in A. Recall the A to
see the product stored in A.
STEP 1: Multiply 2 and 3 by pressing 2 ×3 ENTER .
The product is 6.
STEP 2: Store 6 into A by pressing STO ALPHA A ENTER .
STEP 3: Clear the screen by pressing CL .
STEP 4: Recall A by pressing ALPHA A ENTER .
2. Calculate 3 • 5 and store the value in M. Calculate 4 • 5
and add this product to M. Then, recall the M to see the
sum of the products.
STEP 1: Multiply 3 and 5 by pressing 3 ×5 ENTER .
The product is 15.
STEP 2: Store 15 into M by pressing STO ALPHA M ENTER .
STEP 3: Multiply 4 and 5 by pressing 4 ×5 ENTER .
The product is 20.
STEP 4: Add 20 to M by pressing + ALPHA M .
The sum of the products is 35.
3. Recall the previous answer.
STEP 1: With the display screen cleared, recall the previous answer
by pressing 2ndF ANS ENTER .
MEMORY USAGE
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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Press to access the calculation screen.
1. Calculate 152.
STEP 1: Enter 15 by pressing 1 5 .
STEP 2: Square by pressing the x2key.
STEP 3: Calculate by pressing the ENTER key.
The answer is 225.
2. Calculate 34.
STEP 1: Enter 3 by pressing 3 .
STEP 2: Exponentiate by pressing the abkey.
STEP 3: Enter 4 by pressing 4 .
STEP 4: Calculate by pressing the ENTER key.
The answer is 81.
3. Calculate √ 196.
STEP 1: Enter the square root by pressing 2ndF √.
STEP 2: Enter 196 by pressing 1 9 6 .
STEP 3: Calculate by pressing the ENTER key.
The answer is 14.
POWERS AND ROOTS
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7
Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Press to access the calculation screen.
1. Find log 3.
STEP 1: Enter log by pressing MATH A 4 .
STEP 2: Enter 3 by pressing the 3 key.
STEP 3: Calculate by pressing the ENTER key.
The answer is 0.4771.
2. Find 10(3÷4).
STEP 1: Enter 10 by pressing MATH A 5 .
STEP 2: Enter (3 ÷ 4) by pressing 3 ÷ 4 .
STEP 3: Calculate by pressing the ENTER key.
The answer is 5.6234.
LOGARITHMS AND EXPONENTIALS
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8
Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
The definitions of the trigonometric functions with regard to the right triangle
can be used to find distances between points. The sine function is defined to be
opposite side/hypotenuse, the cosine function is adjacent side/hypotenuse, and
the tangent function is opposite side/adjacent side.
Put the calclator in degree mode by pressing 2ndF SETUP B 1 .
1. Find sin 30°.
STEP 1: Press to access the calculation screen.
STEP 2: Enter sin 30 by pressing MATH Α 1 3 0 .
STEP 3: Calculate by pressing the ENTER key.
The answer is 0.5.
2. Find 3cos 20°.
STEP 1: Enter 3 cos 20 by pressing 3 MATH Α 22 0 .
STEP 2: Calculate by pressing the ENTER key.
The answer is 2.819
3. Find tan 50°.
STEP 1: Enter tan 50 by pressing MATH Α 3 5 0 .
STEP 2: Calculate by pressing the ENTER key.
The answer is 1.19.
Remember that cotangent = 1/tangent, secant = 1/cosine, and
cosecant = 1/sine.
TRIGONOMETRIC FUNCTIONS
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hypotenuse opposite side
adjacent side
θ